Lua APA (7ú heag.)

Bordens, K. S., & Abbott, B. B. (2007). Research design and methods: A process approach (International, 6th ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Bordens, Kenneth S., agus Bruce B. Abbott. Research Design and Methods: A Process Approach. International, 6th ed. Boston: McGraw-Hill, 2007.

Lua MLA (9ú heag.)

Bordens, Kenneth S., agus Bruce B. Abbott. Research Design and Methods: A Process Approach. International, 6th ed. McGraw-Hill, 2007.

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